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- n Award cis/trans-, E/Z-, R/S- and/or M/P-descriptor(s) to each of the following compounds: Hide Transcribed Text werd cla/trana-, E/Z-, R/S-and/er M/P-descriptorial to each of the following compounds: Et EtWhich compound gives a molecular ion at m/z = 122: CgHsCH2CH2CH3, CgHsCOCH2CH3, or CHsOCH,CH3? %3DAward cis/trans-, E/Z-, R/S- and/or M/P-descriptor(s) to each of the following compounds: CI
- PQ-25. Which pair of compounds are enantiomers? CI (A) CI H-OH H-OH CI OH CI- (C) Н -OH CI 애 and and -Н НО НО -H CI о OH н- HO-H CI -CI -OH (B) CIH ОН (D) CI оно 8 I I -ОН H- CI and and НО- CI-H OH o- НО CI- ОНAward cis/trans-, E/Z-, R/S- and/or M/P-descriptor(s) to each of the following compounds: NHThe spec (а) НО (b) HỌ rine, sho specific 15-28 What is он opticall polarize (c) (d) 15-24 Label all stereocenters in each molecule with an asterisk. How many stereoisomers are possible for each molecule? Section 15-4 Is Chirality C 15-29 Answe OH CH,COOH (a) If a an (a) СН,СНCНСООН (b) CHCOOH de Он HO-CHCOOH (b) А (c) Al (d) PlL vi OH Chemical Co (c) (d) 15-30 (Cher say t. be op polar 15-31 (Che drug 15-25 Label all stereocenters in each molecule with an asterisk. How many stereoisomers are possible for each molecule? synt. the c are OH form sin c (a) (b) usec OH chir each Сар ture (c) OH (d)
- One way to determine the number of acidic hydrogens in a molecule is to treat the compound with NaOD in D2O, isolate the product, and determine its molecular weight by mass spectrometry. For example, if cyclohexanone is treated with NaOD in D2O, the product has MW = 102. Explain how this method works.3-Chlorocyclopropene, on treatment with AgBF4, gives a precipitate of AgCl and a stable solution of a product that shows a single 1H NMR absorption at 11.04 δ. What is a likely structure for the products, and what is its relation to HĂ¼ckel’s rule?When measured on a spectrometer operating at 200 MHz, chloroform (CHCl3) shows a single sharp absorption at 7.3 δ. (a) How many parts per million downfield from TMS does chloroform absorb? (b) How many hertz downfield from TMS would chloroform absorb if the measurement were carried out on a spectrometer operating at 360 MHz? (c) What would be the position of the chloroform absorption in δ units when measured on a 360 MHz spectrometer?
- Compound A, MW 86, shows an IR absorption at 1730 cm-1 and a very simple 1H NMR spectrum with peaks at 9.7 (1 H, singlet) and 1.2 (9 H, singlet). Propose a structure for A.Compound B is isomeric with A (Problem 19-79) and shows an IR peak at 1715 cm-1. The 1H NMR spectrum of B has peaks at 2.4 (1 H, septet, 17 Hz), 2.1 (3 H, singlet), and 1.2 (6 H, doublet, 17 Hz). What is the structure of B?Consider the given compound below: Among the following compounds provided, the compound highlighted in blue. Compound III Compound I Identical Compound II Enantiomer ◆ NH₂ -F Diastereomer ◆ HS HS OHC OH HO Br Br HOCHO - F -SH NH₂ whether they are identical, enantiomer, or diastereomer with respect to NH₂ -F # Br || CHO NH₂ F+SH HO Br CHO